go to the Air-insulated switchgear product page Anonymous asked on Jan 3rd, 2015 in Air-insulated switchgear

For the EDT circuit breaker with current transformer integrated, can we use the CT for protection and metering?

Christian Cingolani, Global Product Marketing Manager LTB

ABB's answer

Yes, the most common is to integrate three cores (2 for protections and 1 for measure), but you can do many more combinations. The limitation is in the internal space, so we must look for low output powers, high currents in primary and if possible use 1A secondary output. You can also use the CT integrated for monitoring and synchronization the breakers.

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  • Helene Hedlund

    Helene Hedlund

    Global Product Manager LTB

    High Voltage Products

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